How can the check engine light codes on a 2004 Mazda3?

Yes I can use an OBDII scanner, but that’s not what I mean. Other cars can check their engine codes by counting the number of blinks of the check engine light after a specific key on/off cycle.
Can Mazdas do this? More specifically the Mazda3?

Why is my check engine light on and the engine sputters on a 97 powerstroke?

Check engine light is on and the engine sputters like it is not getting enough fuel. What could be wrong?

Check engine light on, received a diagnostic check and I am unsure what results mean?

The check engine light came on in our 2001 Toyota Highlander
We took it to AutoZone and had them check it and the gave us these results:
1.Defective or Loose Fuel Cap (not this one, checked it)
2.EVAP canister or hose cracked/not connected
3.Purge or vent solenoid defective
4.Vacuum leak at engine
How serious are these thing?
Can we check them ourselves?
Any [...]

My engine doesnt start on my subaru wrx, what is the best way i can check compression?

I think My valves are bent and my engine doesnt start. Can I still check the compression with a cold engine or does my engine have to be warm?

714.699.9008 – Smog Check – Test & Repair Station

actionautocypress.com 714.699.9008 actionautocypress.com 2 Year 24000 Mile Warranty on Most Repairs. Ask for Details. Action Auto 9052 Walker St. Cypress, CA 90630 Phone: 714.699.9008 We at Action Auto specialize in all common vehicle maintenance services and vehicle repairs. Maintenance services are preventative. The most common service is an oil change, performed every three months or [...]

Auto Repair Cypress – Smog Check – 2 Year 24000 Mile Warranty on Most Repairs

actionautocypress.com 714.699.9008 actionautocypress.com 2 Year 24000 Mile Warranty on Most Repairs. Ask for Details. Action Auto 9052 Walker St. Cypress, CA 90630 Phone: 714.699.9008 We at Action Auto specialize in all common vehicle maintenance services and vehicle repairs. Maintenance services are preventative. The most common service is an oil change, performed every three months or [...]

I changed both O2 sensors and my check engine light was not on. Why is it shifting better and has more get up?

It seemed a little sluggish and was shifting poor for an automatic transmission. I changed both of the O2 sensors and WOW what a huge improvement. Should I also do the same with the MAF sensor??

How many sensors are on a 1998 Toyota Avalon. I’ve had two replaced so far and the check engine light is back

The car is running great and I just got a brand new starter and a brand new battery so I think its just another sensor but I’d like to know how many my car typically has before I rush it to the mechanic all worried about some big expensive engine problem.

I just replaced the inlet and outlet o2 sensors on a 2004 pt cruiser and the check engine light still stays on?

When I personally changed the o2 sensors, I still get the same error code that the o2 sensors are bad, but they are brand new and the check engine light stays on. I even tried to remove the battery terminals and then put them back on to reset and still nothing. What do [...]

How much would it cost to get someone to check if ALL of your car’s engine sensors are okay?

O2 sensor
MAP
MAF
coolant sensor
temp sensor
and so on..

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